Charlotte Reign is an independent young woman who works hard to create the life she always dreamed of. Yet, even after accomplishing so much, Charlotte feels lonely as she struggles to adjust to a new city, new body, and new life. All this takes a toll on her confidence. After her first day in Dallas doesn't turn out the way she hoped, she finds herself on the rooftop of a hotel mingling with men and women who partake in the sugar dating lifestyle. It's there she meets a mysterious and handsome older man, Holden. But Holden isn't the typical sugar daddy. He's looking for something a little more intimate than sex, and for him, Charlotte might be the one thing that is more addicting than the blood he craves. Throughout their love affair the two experience trials with vampire hunters, werewolves, a jealous witch, and a 50,000-year-old secret that will change both their lives forever.